若载波vc(t)=VCMcosωCt调制信号vΩ(t)=VΩMcosΩt,则调相波的表达式为()。
A: VPM(t)=VCMcos(ωCt+mfsinΩt)
B: VPM(t)=VCMcos(ωCt+mpcosΩt)
C: VPM(t)=VCM(1+mpcosΩt)cosωCt
D: VPM(t)=kVΩMVCMcosΩtcosωCt
A: VPM(t)=VCMcos(ωCt+mfsinΩt)
B: VPM(t)=VCMcos(ωCt+mpcosΩt)
C: VPM(t)=VCM(1+mpcosΩt)cosωCt
D: VPM(t)=kVΩMVCMcosΩtcosωCt
举一反三
- 若载波uc(t)=Ucmcosωct,调制信号uΩ(t)= UΩmcosΩt,则调相波的表达式为 A: uFM(t)=Ucmcos(ωct+mpcosΩt) B: uFM(t)=Ucmcos(ωct+mfsinΩt) C: uFM(t)=Ucm(1+mpcosΩt)cosωct D: uFM(t)=kUΩmUcmcosωctcosΩt
- 若载波uC(t)=UCcosωCt,调制信号uΩ(t)=UΩcosΩt,则调相波的表达式为(). A: uPM(t)=UCcos(ωCt+mfsinΩt) B: uPM(t)=UCcos(ωCt+mpcosΩt) C: uPM(t)=UC(1+mpcosΩt)cosωCt D: uPM(t)=kUΩUCcosωCtcosΩt
- 若载波uC(t)=UCcosωCt,调制信号uΩ(t)=UΩcosΩt,则调相波的表达式为(). A: uPM(t)=UCcos(ωCt+mfsinΩt) B: uPM(t)=UCcos(ωCt+mpcosΩt) C: uPM(t)=UC(1+mpcosΩt)cosωCt D: uPM(t)=kUΩUCcosωCtcosΩt
- 5.若载波uC(t)=UCcosωCt,调制信号uΩ(t)= UΩcosΩt,则调相波的表达式为 ( ) A: A.uPM(t)=UCcos(ωCt+mfsinΩt) B: B.uPM(t)=UCcos(ωCt+mpcosΩt) C: C.uPM(t)=UC(1+mpcosΩt)cosωCt D: D.uPM(t)=kUΩUCcosωCtcosΩt
- 在模拟乘法器上接入调制信号VΩmcosΩt和载波信号Vcmcosωct后将产生